perf/core: Check sample_type in perf_sample_save_brstack

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Check sample_type in perf_sample_save_brstack() to prevent
saving branch stack data when it isn't required.

Suggested-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Yabin Cui <yabinc@google.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240515193610.2350456-4-yabinc@google.com

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Yabin Cui 2024-05-15 12:36:09 -07:00 • committed by Ingo Molnar

parent f226805bc5

commit faac6f105e

4 changed files with 13 additions and 11 deletions

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3

arch/x86/events/amd/core.c

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3

arch/x86/events/core.c

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3

arch/x86/events/intel/ds.c

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15

include/linux/perf_event.h

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